new charger?

Been offered a x charger for my rxt07 currently got a gen 2 wheel is there any advantage to be gained? Also can you place the mini rude on the x charger what gains, will I have to upgrade any other parts. Running 42's Riva air,IC,grate,wedge,pro BO's,gutted box and thru hull,13/19r,plus free mods.

with the X charger u will need to add a RRFPR along with the 42's that u have already, and just to be safe i would look at doing a wideband to keep track of those afr's, I know i hated saying that but if i didnt someone else will.

Okay so the xcharger's a better option over gen2 but still unsure about whats involed in setting up a RRFPR and how to monitor AFR? Read an old thread and it said place a sensor in the j pipe? Need more info and pics don't want to keep buying and bolting on parts without fully understanding why and their advantages, sorry so many questions.